Support device, design support method, and program
US9830420B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2014 |
| Grant date | Nov 28, 2017 |
| Priority date | — |
| Expiry date | Aug 4, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2119/06
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A design support device having a permissible power supply fluctuation deriving unit and a target impedance deriving unit. The permissible power supply fluctuation deriving unit derives the fluctuation in the power supply voltage that is permissible on the basis of jitter-voltage correlation information, which indicates the correlation between the power supply voltage fluctuation generated in an I/O buffer and the jitter generated by the power supply voltage fluctuations, and jitter constraint information, which is for stably transmitting a signal, for the generated jitter. The target impedance deriving unit derives a target impedance in the permissible range of impedance for a power supply circuit, on the basis of information on the signal operating current flowing through the power supply circuit of the I/O buffer, and the power supply voltage fluctuation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.